Thunderbird close applications updating most populated online dating site
I never noticed it up through version 15 and haven't changed anything else other than the update.
The update is already available on the official download site but the client itself has yet to pick it up. If you check out the release notes, you find more items listed there as new as in the past two years combined.
I have indexing off and all of my mail through Cable One is on the Google mail servers so the small delay at startup to download and sync the mail happens then.
It isn't a big deal, just seems odd that it started with the 17 update.
It is a bug fix release that takes care of the following issues: Thunderbird 45.6.0 was released on December 28, 2016.
It fixes several security issues and an issue that caused the system integration dialog to show up on every start of Thunderbird.